C1D14 SHOCK ABSORBER ACTUATOR

Bilstein DampTronic

C1D14

Description
DTC Logic
Diagnosis Procedure
Component Inspection

Description

Integrated into each the shock absorbers on 4 wheels opens or closes the shutter by moving the solenoid core vertically with the control current from E-SUS control unit to regulate the damping force.

DTC Logic

DTC DETECTION LOGIC

DTC	Display Item	Malfunction detected condition	Possible causes
C1D14	RR ACTUATOR SIG	An open or short circuit is detected in the rear RH shock absorber actuator.	Harness or connector Malfunction of the rear RH shock absorber actuator E-SUS control unit

DTC REPRODUCTION PROCEDURE

1.DTC REPRODUCTION PROCEDURE

Diagnosis Procedure

1.CHECK SHOCK ABSORBER ACTUATOR CIRCUIT (1)

2.CHECK SHOCK ABSORBER ACTUATOR CIRCUIT (2)

3.CHECK SHOCK ABSORBER ACTUATOR

4.PERFORM DATA MONITOR

Component Inspection

1.PERFORM ACTIVE TEST (E-SUS CONTROL UNIT)

E-SUS control unit		Resistance
Connector	Terminal
M110	20	Approx. 2.4 Ω
	14

E-SUS control unit		Rear RH shock absorber actuator		Continuity
Connector	Terminal	Connector	Terminal
M110	20	E302	1	Existed
	14		2

Test item	Display Item	Display
		Operation half cycle
SHOCK ABSORBER ACTUATOR	REAR RIGHT ACTUATOR	0.1 seconds – 1 second (cycle in 0.1 seconds)